TW200627897A - Method for forming digital watermark with hybrid dots - Google Patents

Method for forming digital watermark with hybrid dots

Info

Publication number
TW200627897A
TW200627897A TW094102581A TW94102581A TW200627897A TW 200627897 A TW200627897 A TW 200627897A TW 094102581 A TW094102581 A TW 094102581A TW 94102581 A TW94102581 A TW 94102581A TW 200627897 A TW200627897 A TW 200627897A
Authority
TW
Taiwan
Prior art keywords
dots
digital watermark
document
hybrid
pattern
Prior art date
Application number
TW094102581A
Other languages
English (en)
Chinese (zh)
Other versions
TWI298231B (enExample
Inventor
Hsi-Chun Wang
pei-qi Xiao
Qi-Ming Lian
Original Assignee
Univ Nat Taiwan Normal
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Univ Nat Taiwan Normal filed Critical Univ Nat Taiwan Normal
Priority to TW094102581A priority Critical patent/TW200627897A/zh
Priority to US11/175,203 priority patent/US7554699B2/en
Publication of TW200627897A publication Critical patent/TW200627897A/zh
Application granted granted Critical
Publication of TWI298231B publication Critical patent/TWI298231B/zh

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/40—Picture signal circuits
    • H04N1/405—Halftoning, i.e. converting the picture signal of a continuous-tone original into a corresponding signal showing only two levels
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/32—Circuits or arrangements for control or supervision between transmitter and receiver or between image input and image output device, e.g. between a still-image camera and its memory or between a still-image camera and a printer device
    • H04N1/32101—Display, printing, storage or transmission of additional information, e.g. ID code, date and time or title
    • H04N1/32144—Display, printing, storage or transmission of additional information, e.g. ID code, date and time or title embedded in the image data, i.e. enclosed or integrated in the image, e.g. watermark, super-imposed logo or stamp
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/32—Circuits or arrangements for control or supervision between transmitter and receiver or between image input and image output device, e.g. between a still-image camera and its memory or between a still-image camera and a printer device
    • H04N1/32101—Display, printing, storage or transmission of additional information, e.g. ID code, date and time or title
    • H04N1/32144—Display, printing, storage or transmission of additional information, e.g. ID code, date and time or title embedded in the image data, i.e. enclosed or integrated in the image, e.g. watermark, super-imposed logo or stamp
    • H04N1/32149—Methods relating to embedding, encoding, decoding, detection or retrieval operations
    • H04N1/32203—Spatial or amplitude domain methods
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/32—Circuits or arrangements for control or supervision between transmitter and receiver or between image input and image output device, e.g. between a still-image camera and its memory or between a still-image camera and a printer device
    • H04N1/32101—Display, printing, storage or transmission of additional information, e.g. ID code, date and time or title
    • H04N1/32144—Display, printing, storage or transmission of additional information, e.g. ID code, date and time or title embedded in the image data, i.e. enclosed or integrated in the image, e.g. watermark, super-imposed logo or stamp
    • H04N1/32149—Methods relating to embedding, encoding, decoding, detection or retrieval operations
    • H04N1/32203—Spatial or amplitude domain methods
    • H04N1/32256—Spatial or amplitude domain methods in halftone data
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/32—Circuits or arrangements for control or supervision between transmitter and receiver or between image input and image output device, e.g. between a still-image camera and its memory or between a still-image camera and a printer device
    • H04N1/32101—Display, printing, storage or transmission of additional information, e.g. ID code, date and time or title
    • H04N1/32144—Display, printing, storage or transmission of additional information, e.g. ID code, date and time or title embedded in the image data, i.e. enclosed or integrated in the image, e.g. watermark, super-imposed logo or stamp
    • H04N1/32149—Methods relating to embedding, encoding, decoding, detection or retrieval operations
    • H04N1/32288—Multiple embedding, e.g. cocktail embedding, or redundant embedding, e.g. repeating the additional information at a plurality of locations in the image
    • H04N1/32299—Multiple embedding, e.g. cocktail embedding, or redundant embedding, e.g. repeating the additional information at a plurality of locations in the image using more than one embedding method
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N2201/00—Indexing scheme relating to scanning, transmission or reproduction of documents or the like, and to details thereof
    • H04N2201/32—Circuits or arrangements for control or supervision between transmitter and receiver or between image input and image output device, e.g. between a still-image camera and its memory or between a still-image camera and a printer device
    • H04N2201/3201—Display, printing, storage or transmission of additional information, e.g. ID code, date and time or title
    • H04N2201/3225—Display, printing, storage or transmission of additional information, e.g. ID code, date and time or title of data relating to an image, a page or a document
    • H04N2201/3226—Display, printing, storage or transmission of additional information, e.g. ID code, date and time or title of data relating to an image, a page or a document of identification information or the like, e.g. ID code, index, title, part of an image, reduced-size image
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N2201/00—Indexing scheme relating to scanning, transmission or reproduction of documents or the like, and to details thereof
    • H04N2201/32—Circuits or arrangements for control or supervision between transmitter and receiver or between image input and image output device, e.g. between a still-image camera and its memory or between a still-image camera and a printer device
    • H04N2201/3201—Display, printing, storage or transmission of additional information, e.g. ID code, date and time or title
    • H04N2201/3269—Display, printing, storage or transmission of additional information, e.g. ID code, date and time or title of machine readable codes or marks, e.g. bar codes or glyphs
    • H04N2201/327—Display, printing, storage or transmission of additional information, e.g. ID code, date and time or title of machine readable codes or marks, e.g. bar codes or glyphs which are undetectable to the naked eye, e.g. embedded codes

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Editing Of Facsimile Originals (AREA)
  • Image Processing (AREA)
TW094102581A 2005-01-28 2005-01-28 Method for forming digital watermark with hybrid dots TW200627897A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
TW094102581A TW200627897A (en) 2005-01-28 2005-01-28 Method for forming digital watermark with hybrid dots
US11/175,203 US7554699B2 (en) 2005-01-28 2005-07-07 Method of watermark with hybrid halftone dots

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
TW094102581A TW200627897A (en) 2005-01-28 2005-01-28 Method for forming digital watermark with hybrid dots

Publications (2)

Publication Number Publication Date
TW200627897A true TW200627897A (en) 2006-08-01
TWI298231B TWI298231B (enExample) 2008-06-21

Family

ID=36756212

Family Applications (1)

Application Number Title Priority Date Filing Date
TW094102581A TW200627897A (en) 2005-01-28 2005-01-28 Method for forming digital watermark with hybrid dots

Country Status (2)

Country Link
US (1) US7554699B2 (enExample)
TW (1) TW200627897A (enExample)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI457852B (zh) * 2011-11-22 2014-10-21 Univ Nat Taiwan Normal 文件複印後呈現內容意義改變之浮水印製作方法
TWI494896B (zh) * 2012-10-24 2015-08-01 Univ Nat Taiwan Normal 防偽浮水印圖像及其製造方法

Families Citing this family (52)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005339361A (ja) * 2004-05-28 2005-12-08 Fuji Photo Film Co Ltd 画像表示装置および方法並びにプログラム
US20060284411A1 (en) * 2004-12-16 2006-12-21 Wu Judy W Digitally printed anti-copy document and processes and products therefor
US7995247B2 (en) * 2005-05-12 2011-08-09 Zecang Gu Embedding computer information into printed media and process method thereof
CN100377566C (zh) * 2005-10-26 2008-03-26 北京北大方正电子有限公司 多位成像深度设备上的调频调幅混合半色调图像处理方法
US7949175B2 (en) * 2007-01-23 2011-05-24 Xerox Corporation Counterfeit deterrence using dispersed miniature security marks
US7864979B2 (en) * 2007-01-23 2011-01-04 Xerox Corporation System and method for embedding dispersed miniature security marks
US7637585B2 (en) * 2007-06-05 2009-12-29 Hewlett-Packard Development Company, L.P. Halftone printing on an inkjet printer
JP2009177470A (ja) * 2008-01-24 2009-08-06 Fuji Xerox Co Ltd 文書管理装置およびプログラム
US8588461B2 (en) * 2010-03-22 2013-11-19 Brigham Young University Robust watermarking for digital media
US8693061B2 (en) 2011-07-19 2014-04-08 Eastman Kodak Company Method of embedding data in printed halftone features on a receiver
US8970910B2 (en) * 2011-12-07 2015-03-03 Xerox Corporation Visible and invisible watermarking of printed images via 2nd generation stochastic seed frequency modulation
TW201325935A (zh) * 2011-12-29 2013-07-01 Printing Plant Ministry Of Finance 調變網點結構組合、應用該組合製作具有隱藏圖文印刷品的影像檔的方法及由其所製得的印刷品
TWI497443B (zh) * 2013-06-06 2015-08-21 Univ Nat Taiwan Normal 浮水印圖像及其製造方法
CN103496263B (zh) * 2013-08-16 2015-12-23 东莞市铭丰包装品制造有限公司 一种印刷网点编码生成方法及应用其的图像印刷工艺
US10065441B2 (en) 2015-09-01 2018-09-04 Digimarc Corporation Counterfeiting detection using machine readable indicia
US10456661B2 (en) * 2016-07-19 2019-10-29 Hydragraphix Llc Enhanced security and printability of instant ticket scratch-off-coatings via stochastic overprints
CN108551539A (zh) * 2018-04-18 2018-09-18 合肥博之泰电子科技有限公司 一种高隐蔽性图像防伪信息的加密方法
CN108510427A (zh) * 2018-04-18 2018-09-07 合肥博之泰电子科技有限公司 一种图像中间调区域防伪图文信息的加密和解密方法
CN108521536A (zh) * 2018-04-18 2018-09-11 合肥博之泰电子科技有限公司 一种提高防伪信息隐蔽性的莫尔纹防伪方法
CN108621622A (zh) * 2018-04-18 2018-10-09 合肥博之泰电子科技有限公司 一种在图像中间调区域实现莫尔纹防伪的方法
CN109040512A (zh) * 2018-05-25 2018-12-18 合肥康之恒机械科技有限公司 一种基于颜色值的光栅防伪信息隐藏和提取方法
CN108900732A (zh) * 2018-05-25 2018-11-27 合肥佳洋电子科技有限公司 基于网点位移的防伪信息的隐藏和提取方法
CN108777753A (zh) * 2018-05-25 2018-11-09 合肥嘉仕诚能源科技有限公司 一种在颜色通道中隐藏防伪信息的光栅防伪方法
CN108765254A (zh) * 2018-05-25 2018-11-06 合肥展游软件开发有限公司 一种基于光栅防伪的直线光栅匹配方法
CN108898541A (zh) * 2018-05-25 2018-11-27 合肥尚强电气科技有限公司 一种基于网点百分比和加网线数的直线光栅匹配方法
CN108765251A (zh) * 2018-05-25 2018-11-06 合肥信亚达智能科技有限公司 一种基于网点位移和网点百分比改进的光栅防伪方法
CN108765507A (zh) * 2018-05-25 2018-11-06 合肥展游软件开发有限公司 一种基于20~50%网点百分比的防伪信息的隐藏方法
CN108777752A (zh) * 2018-05-25 2018-11-09 合肥民众亿兴软件开发有限公司 一种提高防伪信息识别性的解码直线光栅匹配方法
CN108830774A (zh) * 2018-05-25 2018-11-16 合肥东恒锐电子科技有限公司 基于20~50%网点百分比的网点位移光栅防伪方法
CN108881661A (zh) * 2018-05-25 2018-11-23 合肥博之泰电子科技有限公司 一种改进的莫尔纹光栅防伪信息的隐藏方法
CN108749392A (zh) * 2018-05-25 2018-11-06 合肥思博特软件开发有限公司 一种基于网点分级抖动的防伪信息编码和解码方法
CN108921768A (zh) * 2018-07-04 2018-11-30 合肥信亚达智能科技有限公司 一种改进数字网点生成的光栅防伪方法
CN109035123A (zh) * 2018-07-04 2018-12-18 合肥信亚达智能科技有限公司 一种适用于中间调和暗调宿主图像的隐藏信息嵌入方法
CN108898543A (zh) * 2018-07-04 2018-11-27 合肥信亚达智能科技有限公司 一种在数字图像的宿主通道中设置防伪信息的方法
CN109102448A (zh) * 2018-07-13 2018-12-28 合肥信亚达智能科技有限公司 提高轮廓隐蔽性能的防伪标识隐藏方法
CN108921770A (zh) * 2018-07-13 2018-11-30 合肥信亚达智能科技有限公司 一种基于边缘检测误差扩散算法的潜像边界改进方法
CN109035124A (zh) * 2018-07-13 2018-12-18 合肥信亚达智能科技有限公司 一种提高不可感知性的潜像网点误差扩散设置方法
CN109064371A (zh) * 2018-07-13 2018-12-21 合肥信亚达智能科技有限公司 基于灰度值扩散的防伪标识设置方法
CN108961142A (zh) * 2018-07-13 2018-12-07 合肥信亚达智能科技有限公司 一种潜像轮廓隐藏性能改进方法
CN109064372A (zh) * 2018-07-13 2018-12-21 合肥信亚达智能科技有限公司 一种采用边界网点灰度值误差扩散的防伪标识隐藏方法
CN109102450A (zh) * 2018-07-20 2018-12-28 合肥东恒锐电子科技有限公司 一种具有多重提取角度的光栅防伪方法
CN108898544A (zh) * 2018-07-20 2018-11-27 合肥东恒锐电子科技有限公司 一种基于双通道的光栅防伪方法
CN109003221A (zh) * 2018-07-20 2018-12-14 合肥东恒锐电子科技有限公司 一种基于光栅识别提取的印刷图像防伪造方法
CN109064374A (zh) * 2018-07-20 2018-12-21 合肥东恒锐电子科技有限公司 一种提高防伪标识加密性能的背景图处理方法
CN109003220A (zh) * 2018-07-20 2018-12-14 合肥东恒锐电子科技有限公司 一种基于背景图分形处理的图像防伪方法
CN109118418A (zh) * 2018-07-20 2019-01-01 合肥东恒锐电子科技有限公司 一种基于双加密通道的防伪标识嵌入方法
EP3830757B1 (en) 2018-08-01 2024-05-15 Hewlett-Packard Development Company, L.P. Covert dot patterns
CN112512812B (zh) 2018-08-01 2022-11-08 惠普发展公司，有限责任合伙企业 隐蔽标记
GB2576186B (en) * 2018-08-08 2021-01-13 Missing Ink As Halftoning method
EP3686027B1 (de) 2019-01-27 2021-07-14 U-NICA Systems AG Verfahren zum drucken von authentifizierungskennzeichen mit einem amplitudenmodulierten rasterdruck
ES3036310T3 (en) * 2019-04-30 2025-09-17 Eco3 Bv Digital halftoning with spiral dots
CN110120005B (zh) * 2019-05-21 2022-11-18 陕西科技大学 一种半色调隐藏图像三维效果的显隐方法

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060284411A1 (en) * 2004-12-16 2006-12-21 Wu Judy W Digitally printed anti-copy document and processes and products therefor

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI457852B (zh) * 2011-11-22 2014-10-21 Univ Nat Taiwan Normal 文件複印後呈現內容意義改變之浮水印製作方法
TWI494896B (zh) * 2012-10-24 2015-08-01 Univ Nat Taiwan Normal 防偽浮水印圖像及其製造方法

Also Published As

Publication number Publication date
TWI298231B (enExample) 2008-06-21
US20060170974A1 (en) 2006-08-03
US7554699B2 (en) 2009-06-30

Similar Documents

Publication Publication Date Title
TW200627897A (en) Method for forming digital watermark with hybrid dots
US10827101B2 (en) Color inspection device to correct color readings of a color detection object using correction coefficients
JP5829464B2 (ja) 絶対測長型エンコーダ
US8982408B2 (en) Color image capturing, measuring, and formation using capture unit with specular reflection preventing member
ATE290687T1 (de) Phasenmessung in einem strahlungsfeld
EP1455520A3 (en) Frequency modulation apparatus and frequency modulation method
US8243351B2 (en) Image reading apparatus, multifunction printer apparatus, and image processing method
JP2004289368A (ja) 画像処理装置、画像形成装置、画像処理方法、コンピュータプログラム及び記録媒体
JP4922272B2 (ja) 画像処理装置、画像処理方法
JP2010050639A (ja) 画像形成装置及びその制御方法、並びに、プログラム
US20090316172A1 (en) Image reading apparatus and image forming apparatus
JP4480739B2 (ja) 画像読取装置
TW200712480A (en) Unevenness inspecting apparatus and unevenness inspecting method
US8237986B2 (en) Image reading apparatus, multifunction printer apparatus, and image processing method
US8345331B2 (en) Image reading apparatus, multifunction printer apparatus, and image processing method
CN106488077B (zh) 图像读取装置、图像形成装置以及图像读取方法
CN103037130A (zh) 图像形成装置和图像形成方法
MX2011006853A (es) Sistema y metodo para calibrar un sistema de lector optico.
US8294955B2 (en) Image reading apparatus, multifunction printer apparatus, and image processing method
US7170657B2 (en) Image reading apparatus and image input-output apparatus
JP2016134732A (ja) 撮像装置及び撮像方法
US8908234B2 (en) Image capture apparatus, image capture system, and image capture method
ATE473593T1 (de) Scanner und verfahren zum scannen
JP2015162874A (ja) 画像読取装置および画像読取プログラム
JP2011059570A (ja) 光書込装置、画像形成装置および光書込方法

Legal Events

Date Code Title Description
MK4A Expiration of patent term of an invention patent